Co-production of hydrogen and carbon nanotubes on nickel foam via methane catalytic decomposition

Co-production of hydrogen and carbon nanotubes on nickel foam via methane catalytic decomposition Article history: The co-production of CO -free hydrogen and carbon nanotubes (CNTs) was achieved on 3-dimensional Received 22 October 2015 (3D) macroporous nickel foam (NF) via methane catalytic decomposition (MCD) over nano-Ni catalysts Received in revised form 11 January 2016 using chemical vapor deposition (CVD) technique. By a simple coating of a NiO–Al O binary mixture sol 2 3 Accepted 6 February 2016 followed by a drying–calcination–reduction treatment, NF supported composite catalysts (denoted as Available online 9 February 2016 Ni AlO /NF) with Al O transition-layer incorporated with well-dispersed nano-Ni catalysts were suc- y x 2 3 cessfully prepared. The effects of Ni loading, calcination temperature and reaction temperature on the Keywords: performance for simultaneous production of CO -free hydrogen and CNTs were investigated in detail. Nickel foam Catalysts before and after MCD were characterized by XRD, TPR, SEM, TEM, TG and Raman spectroscopy Carbon nanotubes technology. Results show that increasing Ni loading, lowering calcination temperature and optimiz- NiO–Al O transition-layer 2 3 ing MCD reaction temperature resulted in high production efficiency of CO -free H and carbon, but Methane catalytic decomposition x 2 broader diameter distribution of CNTs. Through detailed parameter optimization, the catalyst with a ◦ ◦ http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Co-production of hydrogen and carbon nanotubes on nickel foam via methane catalytic decomposition

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2016.02.074
Publisher site
See Article on Publisher Site

Abstract

Article history: The co-production of CO -free hydrogen and carbon nanotubes (CNTs) was achieved on 3-dimensional Received 22 October 2015 (3D) macroporous nickel foam (NF) via methane catalytic decomposition (MCD) over nano-Ni catalysts Received in revised form 11 January 2016 using chemical vapor deposition (CVD) technique. By a simple coating of a NiO–Al O binary mixture sol 2 3 Accepted 6 February 2016 followed by a drying–calcination–reduction treatment, NF supported composite catalysts (denoted as Available online 9 February 2016 Ni AlO /NF) with Al O transition-layer incorporated with well-dispersed nano-Ni catalysts were suc- y x 2 3 cessfully prepared. The effects of Ni loading, calcination temperature and reaction temperature on the Keywords: performance for simultaneous production of CO -free hydrogen and CNTs were investigated in detail. Nickel foam Catalysts before and after MCD were characterized by XRD, TPR, SEM, TEM, TG and Raman spectroscopy Carbon nanotubes technology. Results show that increasing Ni loading, lowering calcination temperature and optimiz- NiO–Al O transition-layer 2 3 ing MCD reaction temperature resulted in high production efficiency of CO -free H and carbon, but Methane catalytic decomposition x 2 broader diameter distribution of CNTs. Through detailed parameter optimization, the catalyst with a ◦ ◦

Journal

Applied Surface ScienceElsevier

Published: Apr 30, 2016

References

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